Office communication services company Slack has applied with the SEC to list shares publicly. Slack is now a step closer to a high-profile IPO. The company did not say how many shares it wants to sell, or at what price. Slack is the most talked-about app of its kind, but is up against heavy hitters like Microsoft, Google, and Cisco.
Slack faces stiff competition on the road to public listing
Slack this week allowed the sending of invitations to other Slack users via their email addresses, which opened the door for abuse and harassment. Eric Baradat/AFP/Getty Images